122 vessels jammed by suspected North Korean plan

By Curious

Around 120 vessels, in this number Coast Guard ships and a passenger boat, have reported malfunctions in their navigation systems by reason of the apparent jamming of satellite signals by North Korea a week ago, maritime police told 4 days ago.
Information from the Coast Guard in Incheon, west of Seoul, with number of 122 vessels were influenced by the disruption to Global Positioning System (GPS) signals 4 days ago. Among the ships were 8 patrol vessels property of the Coast Guard, a passenger liner carrying 387 people and a petrol products carrier.
Fishing boats sailing near the tense western maritime border with North Korea also told about errors in their navigation systems, despite none of them led to accidents, Coast Guard officials reported.
"Last Saturday, I was sailing toward Incheon when the GPS stopped working, and I almost sailed north," informed a fisherman from the western border island of Yeonpyeong, who wanted to stay anonymous.
It is forbidden to travel between the sides of North Korea and South Korea as the 1950-53 Korean War ended in a truce and left them in a technical state of war.
South Korea was under similar electronic attacks in March a year ago, and in August and December of 2010, all of which were accused on the North. South Korean Defense Minister Kim Kwan-jin has informed anti-jamming programs are being developed to meet the attacks.
The defense ministry has announced that the North has a regiment-sized electronic warfare unit around its capital Pyongyang, and some battalion-sized units are placed to the inter-Korean border.
Cross-border pressure have peaked in this years, with Seoul accusing Pyongyang for the March 2010 sinking of a warship and the November 2010 shelling of Yeonpyeong Island, the 2 of which killed a total of 50 South Koreans, the most of them soldiers.
A month ago, North Korea said it will start special military actions to reduce Seoul to ashes in minutes over an alleged insult to the North's pride.